# GEO.Fan

> Generative Engine Optimization (GEO) documentation site — how to make content discoverable, trustworthy, and citable by ChatGPT, Claude, Gemini, Perplexity, Copilot, Google AI Overviews, and other AI engines.

The canonical content is in Chinese under `/zh/`. An English skeleton exists under `/en/` with translation in progress. The root `/` redirects based on `Accept-Language`.

## Getting Started

- [什么是 GEO / What is GEO](https://www.geo.fan/zh/getting-started/what-is-geo/): Introduction to Generative Engine Optimization and how it differs from traditional SEO.
- [GEO vs SEO](https://www.geo.fan/zh/getting-started/geo-vs-seo/): Concrete differences between optimizing for search ranking and optimizing for AI citation.
- [快速入门 / Quick Start](https://www.geo.fan/zh/getting-started/quick-start/): First-time walkthrough of running a GEO check on your content.
- [核心概念 / Core Concepts](https://www.geo.fan/zh/getting-started/core-concepts/): The four GEO dimensions (Authority, Relevance, Structure, User Value), terminology glossary (GEO/AEO/AIEO), and the 2026 AI engine landscape.

## Fundamentals

- [生成引擎工作原理 / How Generative Engines Work](https://www.geo.fan/zh/fundamentals/how-generative-engines-work/): Transformer architecture, pre-training vs. fine-tuning, retrieval-augmented generation, and what these mean for content optimization.

## AI SEO

- [内容生成 / Content Generation](https://www.geo.fan/zh/ai-seo/content-generation/): Patterns and pitfalls when using AI to draft, structure, and review content.

## Tools

- [GEO 检测工具 / GEO Checker](https://www.geo.fan/zh/tools/geo-checker/): Score content on Authority, Relevance, Structure, and User Value with concrete fix suggestions.
- [性能分析 / Performance Analysis](https://www.geo.fan/zh/tools/performance-analysis/): Track long-term performance with the five standard 2026 KPIs (Mention Rate, Citation Rate, Share of Voice, Share of Answer, Position).
- [竞品分析 / Competitor Analysis](https://www.geo.fan/zh/tools/competitor-analysis/): Benchmark against competitors and build a gap matrix that drives the next optimization sprint.
- [资源中心 / Resources](https://www.geo.fan/zh/tools/resources/): Curated reading list, templates, and tools for GEO practitioners.

## Best Practices

- [内容策略 / Content Strategy](https://www.geo.fan/zh/best-practices/content-strategy/): 2026 content strategy playbook — TL;DR blocks, citation density rules, 7–14 day refresh cadence, JSON-LD schemas by funnel stage, sameAs entity linking, earned-media tactics, pre-publish checklist.
- [30 天实施框架 / 30-Day Implementation Framework](https://www.geo.fan/zh/best-practices/implementation-framework/): Week-by-week deliverables — technical foundation, structured data, citability, entity signals.
- [多平台分发 / Multi-platform Distribution](https://www.geo.fan/zh/best-practices/multi-platform-distribution/): Core Fisheries concept — Wikipedia, Reddit, YouTube, Zhihu, Bilibili, WeChat; channel ROI priorities for EN and CN ecosystems.

## Technical Setup

- [llms.txt 与 AI 爬虫 / llms.txt and AI Crawlers](https://www.geo.fan/zh/technical/llms-and-bots/): Allowlist AI crawlers in robots.txt, publish llms.txt / llms-full.txt, ai.txt standard, SSR requirements, sameAs entity linking.

## Case Studies

- [电商案例 / E-commerce Case Study](https://www.geo.fan/zh/case-studies/ecommerce/): Applying GEO to a large product catalog and what changed.
- [B2B 技术站 / B2B Tech Docs](https://www.geo.fan/zh/case-studies/b2b-tech/): Developer-tool documentation applying GEO — author-byline, HowTo schema, comparison pages, sameAs to GitHub/Crunchbase/G2.
- [独立创作者 / Independent Creator](https://www.geo.fan/zh/case-studies/creator/): How a solo creator can win AI citations through vertical depth, weekly refresh cadence, and multi-platform distribution.

## About

- [更新日志 / Changelog](https://www.geo.fan/zh/changelog/): Site updates and version history.
- [隐私政策 / Privacy Policy](https://www.geo.fan/zh/privacy/)
- [使用条款 / Terms of Use](https://www.geo.fan/zh/terms/)

## Optional

- [/llms-full.txt](https://www.geo.fan/llms-full.txt): Full-text bundle of all pages above for one-shot AI ingestion.